Thomas edgar adams



(No'Model.) T. E. ADAMS.

DOUBLE POLE TRoLLEY.

No. 496,631. Paten-tedMay 2, 1893.

, Roar or 0,4/1,

' UNITED STATES THOMAS EDGAR ADAMS, OF CLEVELAND, OHIO, ASSIGNOR TO THE ELECTRIC COMPANY.

PATENT OFFICE.

BRUSH DOUBLE-POLE TROLLEY.

SPECIFICATION forming part of Letters Patent No. 496,631, dated May 2, 1893.

Application filed .Time 1l, 1889. Serial No. 313,822. (No model.)

To a/ZZ whom, it may concern,.-

Be it known that I, THOMAS EDGAR ADAMS, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Double-Pole Trolleys and Stands for Electric Street-Railroads; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the artto which it appertains to make and use the same.

My invention relates to an improvement in double pole trolleys and stands for electric street railways, the object being to provide each of the two trolleys of electric railways with a separate flexible supporting pole to insure independent adjustment and support to each trolley.

A further object is to providea single supporting stand with two independent adjustable trolley poles pivotally mounted thereon so that both trolley poles may be rotated in unison and the positions of the trolleys reversed.

A further object is to provide an improved construction of trolley, of trolley pole, and stand.

With these several objects in view my invention consists 'in certain novel features of construction and combinations of parts as will hereinafter be described and pointed out in the claims. l

In the accompanying drawings Figure l is a View in side elevation of my invention. Fig. 2 is a similar view in rear elevation. Fig. 3 is a vertical section taken through the trolley stand. Fig. Ltis a detached View in side elevation of the trolley, and Fig. 5 is a longitudinal section and Fig. 6 is a transverse vertical section of the same.

A represents the roof of a street car which latter is provided with any suitable electric motor and apparatus for propelling it by electricity. To the roof is secured a plank or bed piece A', which serves as a support for the trolleyV stand which latter is constructed as follows:

B is a cast iron plate which may be circular yin form and which is perforated for the insertion of screws or bolts for fastening the plate to the plank A. Plate B may be provided on its upper and lower sides with the wooden block F.

bosses or hubs a a to form an extended bearing within which is firmly secured the lower end of the pivot b, which may have its upper end reduced in size as shown in the drawings. 0n the upper surface'of the plate B is placed a wooden block C which is provided wlth a central hole for the reception of the pivot b. Upon the wooden block is supported a brass contact sleeve D, the lower end of which 1s formed with an outwardly projecting ange d which serves as an annular seat for the cast metal sleeve E, the latter having a bracket E formed integral therewith. Bracket E 1s suitably perforated for the insertion of screws b by which it is secured to one side of the The cast metal sleeve E1s held in snug contact with the brass sleeve D by means of a split ring F which enclrcles the wooden block G which latter is rmly secured on the pivot b. Upon the upper and reduced end of the pivot b is supported an 1nverted cup-shaped casting H which has an extended bearing on the pivot and hence has a good electrical contact therewith, and the contact surfaces are thoroughly protected against the entrance of rain or snow by the closed upper end of the casting H. The casting H is formed integral with a bracket I which is fastened to the wooden block on the side opposite the bracket E. Bracket-s E and I-I are each provided with a trunnion J upon which is loosely .mounted a sleeve K. The outer end of each sleeve is provided with a hole j through which is inserted a pin k which enters one of a series of holes l formed in the outer end of the trunnion. To the periphery of each sleeve is secured the inner end of a spiral spring L, the outer end of which is fastened to the housing M on the lower end of the trolley pole. The housing serves to receive and protect the spiral spring.

N is the trolley pole which may be made wholly of wood, but preferably is made as follows: N is a tube made of thin steel and is secured at its lower end to the arm N of the housing M. Within the upper end of the steel tube is fastened a pole N2 made of tough and flexible wood, so that the pole will yield and accommodate itself to any irregularities in the roadway or the conductors.

To the upper end of each trolley pole is IOO pivotedat fn, a trolley O. These trolleys are forced in snug electrical contact with the two line wires P P. Each trolley is constructed as followsl-Q is a U-shaped metal plate or casting in the form of a shoe the sides of which are arc-shaped. One side of the trolley is constructed with double walls q q which are separated so as to form an intervening oil chamber q2, to which oil is supplied from any suitable oil cup or lubricator R. Oil is fed to chamber g2 from whence it escapes through the series of feed openings r formed in the inner Wall of the trolley and falls upon the renewable contact plate R which is riveted or otherwise secured on the bottom of the trolley. The wear of the renewable plate R and of the sides of the trolley, due to their j sliding frictional contact with the line wires,

is reduced to a minimum by the supply of lubricant to the trolley. Sis a spark catcher, and consists of a metal plate pivoted to the trolley and forced upward against the under side of the line wire by means of a spring s. Should the trolley jump out of contact with the line wire, the circuit will still be completed through the spark catcher and the formation of an arc be prevented thereby.

S is a pin removably secured to the trolley and adapted to actuate the line switches.

Conductors 'l and U are connected with the car motor. Conductor T is electrically connected with the brass sleeve D, which is electrically connected with the cast metal sleeve E with which the trolley is electrically connected by means of `a suitable conductor. The conductor U is electrically connected with the other trolley through the pivot b, casting I-I and suitable conductor connecting the casting and trolley. It will thus be observed that each trolley is provided with a separate trolley pole and conductor, and further that While each trolley is permitted to have an independent adjustment, and to be separately detached from the line conductor, both poles and trolleys-may be swung around in unison and their positions reversed. The pressure of the trolleys in the line conductors may be readily varied and independently regulated by changing the tension of the spiral springs, it being simply necessary to so adjust the sleeves K to which the spiral springs are secured at one end that any desired pressx ure may be transmitted to the trolley poles.

V V are steel stop pins, secured 'to the wooden block to limit the forward movement of the trolley poles.

As it is evident that many changes in the form, construction and relative arrangement of parts might be resorted to without departing from the spirit of the invention I would have it understood that I do not restrict myself to the particular construction and arrangement of parts shown and described, but,

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A trolley shoe provided With a chamber for lubricating material and with an Opening for discharging the lubricant onto the face engaged by the line wire, substantially as set forth.

2. A trolley shoe constructed with double side walls arranged to form an intervening oil spark-catcher plate arranged to press against.

the under side of the line conductor at one end of the trolley shoe, substantially as set forth.

6. The'combination with astand and abracket pivotally mounted thereon, of two independentl trolleys mounted on said bracket, each trolley having independent devices for holding it in contact with the line Wire.

'7. The combination with a trolley-pole having a housing secured to its lower end, of a trolley stand provided with a bracket havlng a journal or trunnion, and a spring inclosed within the housing for forcing the trolley against the line conductor, substantially as set forth. 0

8. The combination with a housing havlng a trolley pole secured thereto, and a bracket journal provided with an adjustable sleeveon which the housing is journaled, of a spring one end of which is fastened to the housing and the other to the adjustable sleeve, substantially as set forth.

9. The combination with the bracketjournal or trunnion provided with a series of holes, and a sleeve mounted on the bracket journal and provided with a hole and an adjusting pin, of a trolley pole housing j ournaled on the sleeve, and a spiral spring one end of whlch is fastened to the housing and the other end to the adjustable sleeve, substantially as set forth. f.

10. The combination with the trolley stand having a metal sleeve secured thereto, and a conductor connected with the car motor electrically connected with said sleeve of a trolley pole bracket provided with a sleeve or ring that is mounted upon and has a rotary motion on said conducting sleeve, substantially as set forth.

11. The combination with the pivot of the trolley stand and a conductor connected with the car-motor, electrically connected with said pivot, of a trolley bracket provided with a bearing that is supported on said pivot, substantially as set forth.

12. rThe combination with a trolley stand and two independent trolley poles pivotally mounted thereon of separate electrical connections with each trolley pole, substantially as set forth.

los

496,631V Y s 13. The combination with a trolley stand provided with a pivot electrically connected With the motor and with one trolley, of an insulated sleeve on the stand electrically connected with the motor and with another trolley, substantially as set forth. A

14. The combination with atrolley pole and shoe, of a removable pin for actuating the line switches, substantially as set forth.

15. The combination with a conductor and a motor car, of a trolley engaging the conductor and a lubricator attached to and carried by the trolley.

16. The combination with an overhead conductor, of a trolley pole carrying at its upper end a contact device for engaging the conductor, and a lubricator. n

17. In an electric railway the combination with the collector of a device for supplyinga coating to the working conductors attached to and carried by the collector. y

18. The combination with a stand and a bracket pivotally mounted thereon, of two independent trolley poles pivotally secured to said bracket each having independent devices for maintaining its trolley in contact with the line wire.

19. In a double suspended system of electric conductors, a duplex contact device comprising separate upwardly spring pressed contact carrying arms movable on both a vertical and a transverse axis and separate insulated circuit connections between said arms and their stationary supports.

20. In a double suspended systemof electric conductors a duplex contact device comprising separate upwardly spring pressed.

arms, each provided with a current collecting device at its free end and movable on both a vertical and transverse axis, and separate insulated circuit connections between said arms and their stationary support, said connections being also free to move upon a vertical axis without disturbance.

21. In adouble suspended conductor system, the combination with a pair of contact arms, a vertical support provided with transverse extensions upon which said arms are movably sustained, tension springs upon the tranverse supports, one end of each of said springs 'engaging one of the arms, the other extremity thereof, being provided with locking mechanism, and locking devices upon the support for securing and retaining the inner ends of the springs. Y

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

y THOMAS EDGAR ADAMS.- Witnesses:

SIDNEY H. SHORT, S. P. VAN NORT. 

